[concinds]

There's a big difference between NSFW/NSFL warnings, and trigger warnings.

The former are meant for people that either actively avoid watching gore/porn, or who generally wouldn't mind but are in public/at work and want to avoid embarassment.

The latter (trigger warnings) were invented by relatively sheltered and emotionally unhealthy teens on Tumblr, many of whom incorrectly self-diagnose with PTSD and other ailments. It became more prevalent in the 2010s as these teens grew up and got jobs and media influence. It was far more of a way to signal in-group membership, than an actual scientific practice. People who didn't include trigger warnings could get criticized (and occasionally harassed) pretty hard.

It's the same as the TikTokers who say "k-word" instead of "kill", not to protect people's feelings, but to avoid TikTok's heavy content moderation. If influencers or corporations start saying "k-word" outside of TikTok in the future, you can assume it has more to do with immaturity (or the horribly-named "virtue signalling" concept, which is really just in-group signalling) than with any empirical attempt to reduce mental health impacts.